Motor suspension



Jan. 19, 1932. T. w. PRICE MOTOR SUSPENSION Filed Sept. 18, 1930 INVENTOR 712011250 WPrza-a. A F ATTORN Patented Jan. '19, 1932 OFFICE THORNTON W. PRICE, 015 NEW BBUNSVVICK, J11

HO'IOE SUSPEN 81013 Application filed September 18, 1930. Serial Ho. 482325.

of the type designed to'absorb the vibratory lift motion and hum of an operating electric motor or the like, the present invention being in the nature of an improvement upon the structure shown and described in my pending application Serial No. 311,604, filed Novem-= her 6th, 1928, being now Patent No. 1,780,719, issued November tth, 1930.

. A; particular object of the present improvement is to simplify and render more attractive the structure shown in my previous application and also to maintain its durability and improve its efiectiveness for its purpose.

A more detailed object is to provide a motor suspension ,including a series of tension springs upon which the motor hangs, and a resilient support forsaid springs made up of material easily obtainable, readily prepared for its purpose and efficient in the performance of its purposes.

ll. further object is to make up said device as a simple portable element readily movable from place to place.

A further detailed object is to so construct the device that it will possess a desirable degree of resilience throughout for thereby lending to the resilient support of the tension" springs employed.

Other objects and aims of the invention, more or less specific than thosereferred to above, will be in part obvious and in" part pointed out in the course of the following description of the elements, combinations, arrangements of parts and applications of rinciples constituting the invention; an the scope of protection contemplated Wlll be in dicated in the appended claims.

lln the accompanying drawings which are to be taken as a part of this specification; and in which I have shown merely a preferred form of embodiment of the invention Fig. l is a perspective viewof a motorsuspension device constructed in accordance with the rovisions of this invention, a motor being s own in dotted lines in operative association therewith, and

Fig. 2 is a transverse sectional view 11 on the plane of line. 11-11 of Fig. 1 to il ustrate the cross sectional contour of the stock material employed.

Referring to the drawings for describing in detail the structure illustrated therein, the reference characters L, G and H indicate three standards spaced apart equidistant or otherwise as may be requnred.

The standards Land G are formed from a single length of material bent into shape, the standards L and G being the two legs of the U and a connecting portlon as l of the U being intended to rest fiat upon the floor and preferably having apertures or the like as 2 therethrough by which it may be fastened to the floor y screws or other appropriate fastening means.-

The standard H is formed as part of a separate piece of material of the same kind as that from which the standards L and G are formed. llhe piece from which the standard H is formed is bent intermediate its length so that its opposite end portions are substantially at right angles to each other, one of said end portions being the standard. H and the other of said end portions, as indicated bythe reference character 3 being adapted to lie flat upon the door and'having one or more apertures t for accommodating screws or like fastening means. The portion 3 serves to connect the standard H with the standards L and "G the extreme end of said portion 3 being welded or "otherwise rigidly connected with the ortion 1 of the strip from which the standardsli and G is formed, as at 5.

The ortions 1 and 3 collectively constitute a ass for resting squarely and firmly upon the floor and having the standards L and G and H rising fnom appropriately spaced points thereon.

The upper end of each of the standards is preferably turned or bent inwardly to rovide lateral extensions as 6, 7 and 8 pro ecting in the general direction of a common centre between the several standards. These extensions are formed each with a hole as 9, or other appropriate means, by which the upper ends of a series of coil springs as 10, 11 and 12 may be universally pivotally connected therewith, a convenient method of attachment consisting ofhav ing hook shaped terminals as 13 of said springs engaged through the holes 9 as indicated.

The lower ends of the springs are connected with the motor or with a platform as 1 1 J in specific cases.

The points of attachment of the springs 10, 11 and 12 with the extensions 6, 7 and 8 respectively are at or near the inner ends of said extensions and are hence spaced at one side of the vertical plane of the standards respectively so-that any applied'weight will tend to bow or bend the standards inwardly toward the common centre, thus placing said standards always under strain.

The openings 16 in the motor platform for receivin the springends 15 are preferably arran in such relation to the standards that the springs extend from said openings in an inclined direction upwardly to their points of attachment with the standards, the inclination of the several springs being such that they converge downwardly from the standards to the platform and thus exert a centering tendencyupon the platform serving to hold the platform normally in a properly centered relationship between the standards while at the same time holding the platform in a fioatin condition freely movable laterally in all irections.

The material from which the standards, and their portions 1 and 3, is formed is preferably of a shallow U cross section throughout, substantially as indicated in the illustration Fig. 2, as by this means-a desirable amount of strength and resiliency is secured in a minimum cross sectional area. The material is preferably arranged so that the spaced le s as 17 and 18 thereof face inwardly o the device so that strains a plied to the upper ends of the standards, as hy the springs 10, 11 and 12, tending to bend the upper ends of said standards inwardly toward each other, will produce a crushin strain lon 'tudinally upon said flanges 1% and 18 an a tension strain upon the web or connectin portion as 19, thereby tending to bow said fianges away from each other.

The character of material employed from which to form the standards may be sheet steel bent into the desired cross section or it may in some cases be ordinary commercial rolled section, and the thickness, cross sectional area and temper of the material varying in different-cases according to the size and weight of the motor to be supported.

The openings 2 and 4 by which to fasten the device to a floor or table are preferably arranged close together, that is spaced somewhat from the bottom ends of the standards, so as to offer only negligible opposition to the free flexing of practically the entire length of material from which the standards are formed. Or in some cases the fastening means may be entirely omitted, and in this event the entire length of the material of which the standards is a part is capable of flexing to assist in absorbing the vibratory movements and .hum of the motor.

The vibratory movement of the motor is impressed first upon the tension springs 10, 11 and 12. From these it passes to the upper ends of the standards and thence is absorbed by said standards. The tension springs are relatively highly resilient but the standards are relatively less resilient. Vibratory movement of the motor is generally absorbed by the tension springs and what is transmitted to the upper ends of the standards is readily absorbed by the standards.

The standards L, G and H constitute vertically disposed leaf springs having laterally turned upper ends from which the upper ends of the tension springs 10, 11 and 12 are suspended, the lower ends of said leaf springs being supported by the portions 1 and 3 which are themselves of a springy character serving to hold the springs in a suitably firm, and at the same time suitably yieldable, normally vertical position. 1

It will be understood that while thedrawings herewith show the device to include only three standards, obviously an number of such standards may be employe grouped about a common centre so that all of the standards will function in the same manner as herein described.

As many changes could be made in this construction without departing from the scope of the invention as defined in the following claims, it is intended that all matter contained in the above description, or shown in the accompanying drawings, shall be interpreted as illustrative only and not in a limiting sense.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent. is:-

1. A motor suspension comprising a motor platform, a pluralit of tension springs by which said motor pfatform is suspended so as to be freely movable in all lateral directions, and a plurality of substantially vertically disposed leaf springs having lateral turned up er ends from which the upper ends of said tension springs are suspended, together,with\ supporting means for said leaf springs engaging the lower end portions intense thereof, at least two of seid lest springs end remainder of its is h is fixed to the con: s portion of said supportin moons being formed from o single stri' on. materiel of s stitutes another ortion oi-seid support end cross section, said strip going bent into U both o1? seid strips of meteriel being of ll shape in cross'section,

shops 2. A motor suspension comprising as motor in testimon whereof ll efiix my si pletiorm, e plurality of tension springs by HORNTON W P ICE. which seid motor letform is sus ended so as to be freely move is in all lnter directions, end e, plurality of substantially verticnlly disposed lent springs having upper ends irom which the u per'ends of said tension springs are suspen ed, together with supporting means for said leaf springs engaging the lower end portions thereof, at least two of seid leaf sp gs end e portion of said on? porting moons being formed from s sing strip'oi" materiel bent into U shape so-thet the legs of the U constitute the two standards and so thet the connecting part oi the U constitutes the mentioned porfion oi the sup porting moons.

3. A motor suspension comprising e motor plstiorm, e. plurelit of tension springs by which ssid motor p etiorm isosuspended so es to he ireely moveble in all lateral direc= tions, end or plurelity of substantially wer ticelly disposed lest springs heving upper ends from which the upper end of said tension springs are suspended, together with supporting means for said'leefi s rings on gaging the lower end portions t ereoi, .et least two of said leaf sprin and n portion of said supporting means be ng formed from a single stri of material bent into U shepe so that the egg of the U constitute the two standerds and so that the connecting port of the Ll constitutes the mentioned portion of the supporting means, and another of seid leaf springs being formed from a. separete strip of material bent so that port of its length constitutes said leaf spring and the remainder oi its length is fixed to the con necting portion of the first strip and oonsitutes another portion of said support.

4. A motor suspension comprising a. motor platform, a pluralit .of tension springs by which said motor p atform is su nded so as to be freely movable in all lateral directions, and a plurality of substantially verticelly disposed leaf springs having upper ends from which the upper end of said tension springs are suspended, together with supporting means for said leaf springs engaging the lower end portions thereof, at least two of said leaf springs and a portion of said supporting means being formed from a single strip of material bent into U shape so that the legs of the U constitute the two standards and so that the connecting part of the U constitutes the mentioned portion oi the supporting means, and another of said leaf springs being formed from a separate strip of material bent so that part of its length constitutes said leaf spring and the nesting portion of tne first strip end con-= Q oture. 7 

